Hydrohistorian
WALLDEN, GLEN
Monitored well · 49529 · Division 1 · Water District 2
Its well permit here · Well permit at DWR ↗ · Download levels (CSV)
Denver Basin bedrock
Confined sandstone aquifer; negligible human-timescale recharge — pumping is one-way storage mining.
Because this aquifer does not recharge on a human timescale, a decline here is storage being removed, not a stream being short. It is kept out of the stream-depletion math for that reason.
Water-level record
19 measurements from 1980-06-17 to 2008-04-29.
Over the record the level is no trend at 6.51 ft per decade (p = 0.1031, n = 18). Mann–Kendall with the Hamed–Rao autocorrelation correction, on water-level elevation; rising elevation means more water.
Chart: water level at this well over time, 1980-06-17 to 2008-04-29, 19 measurements. The record is no trend at 6.51 feet per decade (p equals 0.1031), measured on water-level elevation. Rising elevation means more water. The values are downloadable as CSV from the link above.
The well itself
| Aquifer | UPPER DAWSON |
|---|---|
| Designated basin | DENVER BASIN |
| Total depth | 400.0 ft |
| Perforated interval | 280.0–400.0 ft |
| Ground elevation | 6350.0 ft |
| Reported yield | 15.0 gpm |
| Permit | 113475 |
| Location | 39.49000, -104.66000 |
What this page is not
Monitoring records are irregular: measurements cluster where somebody chose to look, so a trend describes this well's record, not the aquifer as a whole. Levels are DWR's published measurements, unedited. A trend here is not a prediction, and it is not a determination about anyone's water right.